4 ms·

any is the last resort. How do you get around properties assigned via Object.defineProperties recognised by TS, though? I really don't know. Is is an unrelated

• TheCleric 4y ago
  Here's how I would do it: interface IOptionsX { x: number; } interface IOptionsY { y: number; } const testObj: IOptionsX = {x : 0}; Object.defineProperties(testObj, { y: { value: 100, writable: true }, }); if ('y' in testObj) { // Could also do `&& typeof testObj.y === 'number'` to be VERY sure. const testObjWithY = testObj as typeof testObj & IOptionsY; console.log(testObjWithY.y) }
  • TheCleric 4y ago
    Though honestly I've gotten this far without EVER using defineProperty so I'd probably continue that streak.